20001+1737 S   730BC

 
 
20H 00M 10.25S +17 38' 28.3" P.A. 238 SEP 68.4 MAG 8.45,10.21 SP F5
 
 
Coord 2000
20001+1737
Discov num
S   730
Comp
BC
Coord arcsec 2000
20 00 10.25 +17 38 28.3
Date first
1879
Date last
2002
Obs
13
Pa first
239
Pa last
238
P.A. Now (θ)
238°
Sep first
70.4
Sep last
68.4
Sep. Now (ρ)
68.4"
Mag pri
8.45
Mag sec
10.21
delta mag (ΔM)
1.76
Spectral class
F5 (yellow-white)
Pri motion ra
-012
Sec motion ra
+000
Pri motion dec
-006
Sec motion dec
-004
Notes
N (See Notes)
rPM=0.907
This double is not physical.
 
 
20001+1737 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 105523 20001+1737 S 730 AB 1825 2014 27 14 112.8 7.16 8.45 1.29
Show 105523 20001+1737 S 730 AC 1879 2014 22 338 78.5 7.16 10.21 3.05
Show 105523 20001+1737 S 730 AD 1879 2014 16 198 40.7 7.16 9.90 2.74
Show 105523 20001+1737 HO 638 AE 1889 1928 4 283 2.7 7.16 10.20 3.04
Show 105525 20001+1737 S 730 BC 1879 2002 13 238 68.4 8.45 10.21 1.76 <===
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagitta
SAO
105525
Tycho2
1621-01662-1
HD
189575
last precise pa
237.9
last precise sep
68.44